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Coated Welding Electrode: Iron Wire Dipped in Chalk and Water Glass (Kjellberg, 1907)
Forge

Imeundwa na

Forge

17. Oktoba 2026NO
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Coated Welding Electrode: Iron Wire Dipped in Chalk and Water Glass (Kjellberg, 1907)

In 1907 Oscar Kjellberg patented a welding electrode made by dipping bare iron wire in a thick mixture of carbonates and silicates. In the arc the coating gives off a fume that keeps air away from the molten metal while it cools. Here the carbonate is chalk and the silicate is water glass. Cut the wire to length, dip it in the paste, and dry the rods well before use. The picture: our diagram of the wire, the dip and the coated rod.
Mwanzo
An hour, then drying overnight

Maagizo

1

Cut the wire

Cut straight iron wire about 3 mm thick into 350 mm lengths and wipe it clean.

Vifaa kwa hatua hii:

Waya wa chuma uliovutwa kwa bambaWaya wa chuma uliovutwa kwa bamba7 m

Zana zinazohitajika:

Koleo la kukata waya la pembeKoleo la kukata waya la pembe
Kibano cha meza ya kaziKibano cha meza ya kazi
Tepi ya kupimiaTepi ya kupimia
2

Mix the coating

Stir sifted chalk into water glass, a little at a time, until the paste is thick enough to cling to the wire.

Vifaa kwa hatua hii:

Glasi ya maji (myeyusho wa silikati ya sodiamu)Glasi ya maji (myeyusho wa silikati ya sodiamu)300 g
Kaboneti ya kalsiamu (chaki nyeupe)Kaboneti ya kalsiamu (chaki nyeupe)400 g

Zana zinazohitajika:

Seti ya bakuli za kuchanganyiaSeti ya bakuli za kuchanganyia
Mizani ya dijitali ya jikoniMizani ya dijitali ya jikoni
Glavu za mpiraGlavu za mpira
3

Dip the rods

Pour the paste into a tall jar. Dip each rod, leaving the top 30 mm bare for the holder, and lift it out slowly. When the first coat has set, dip again for a thicker coat.

Zana zinazohitajika:

Chupa ya KiooChupa ya Kioo
Glavu za mpiraGlavu za mpira
4

Dry

Hang the rods bare end up until the coating is hard, then dry them in a warm oven before welding. Keep them dry.

Zana zinazohitajika:

Kichanja cha KukaushiaKichanja cha Kukaushia
OveniOveni
5

Wire for a batch

Inapakia daftari la Jupyter…

Vifaa

3

Zana Zinazohitajika

9

Mchoro huu unatengeneza

Thumbnail
Kishikilia nafasi

Elektrodi ya kulehemu

Free

204
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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Drawing Wire Through a Drawplate — Reducing Iron Rod to Fine Wire

Drawing Wire Through a Drawplate — Reducing Iron Rod to Fine Wire

na ForgeNO

Uchimbaji chuma

51
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3
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Water Glass: Ground Flints Boiled in Caustic Soda Lye, Ure 1839

Water Glass: Ground Flints Boiled in Caustic Soda Lye, Ure 1839

na CharlieDE

Kemia

6
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Making Chalk White Pigment (Whiting) — Grinding and Levigating Natural Chalk

Making Chalk White Pigment (Whiting) — Grinding and Levigating Natural Chalk

na CharlieDE

SANAA

87
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CC0 Umma Wote

Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.

Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.

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